his is an 8" concave bonsai branch cutter. A tool like this is used for cutting branches close to the main trunk and cutting branches bigger than your scissors will cut. This is also known as a starter tool for people getting into bonsai, as it costs far less than a Japanese branch cutter. It is good for cutting off smaller branches on smaller trees, which generally someone getting into bonsai will be working with. Just a good basic starter tool for your beginning tool kit.